package com.webserver.http;

import java.io.IOException;
import java.io.InputStream;
import java.net.Socket;
import java.util.HashMap;
import java.util.Map;

/*
* 请求对象
* 该类的每一个实例用于表示浏览器发送的一个请求内容
* 每个请求由三部分构成：
* 请求行，消息头，消息正文
* */
public class HttpRequest {
    //请求行相关信息
    private String method;
    private String url;
    private String protocol;

    private Map<String,String> headers = new HashMap<>();

    private Socket socket;
    public HttpRequest(Socket socket)throws IOException{
        this.socket = socket;
        parseRequestLine();
        parseHeaders();
        parseContent();

    }
    private void parseRequestLine()throws IOException{
        String line = readLine();
        System.out.println(line);
        String []data = line.split("\\s");
        method = data[0];
        url = data[1];
        protocol = data[2];
        System.out.println("method"+method);
        System.out.println("url"+url);
        System.out.println("protocol"+protocol);
    }
    private void parseHeaders()throws IOException{
        String line;
        String[]data;
        while(!(line = readLine()).isEmpty()){
            System.out.println("消息头"+line);
            data = line.split(":\\s");
            headers.put(data[0],data[1]);
        }
        System.out.println("headers"+headers);
    }
    private void parseContent(){}
    private String readLine()throws IOException{
        InputStream in = socket.getInputStream();
        StringBuilder builder = new StringBuilder();
        int d;
        char pre = 'a';
        char cur = 'a';
        while((d = in.read())!=-1){
            cur =(char)d;
            if(pre == 13 && cur ==10){
                break;
            }
            builder.append(cur);
            pre = cur;
        }
        return builder.toString().trim();
    }

    public String getMethod() {
        return method;
    }

    public String getUrl() {
        return url;
    }

    public String getProtocol() {
        return protocol;
    }

    public String getHeader(String name) {
        return headers.get(name);
    }
}
